Question about 2003 Chevrolet Silverado 1500

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Location of oil pressure switch on 2003 Chevy silverado 4.3 liter

After oil change oil pressure would peg out when running and stop at 50 to 60 when cut off

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  • Chevrolet Master
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The sensor should be near the distributor on the back of the intake.

Posted on Feb 17, 2014

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Posted on Jan 02, 2017

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SOURCE: oil pressure on a 2004 5.3 liter silverado at idle is around 20

The pressure to be most concerned with is the reading in gear at idle with engine warmed up...Low end really should not be below 20. If pressure wanders, change the sending unit and check actual pressure with a mechanical gauge if necessary. The age and quality of your oil, as well as temperature all play a part in pressure, as well as internal wear from time & miles of use. If pressure changes with rpm, that is normal. 40psi is good while driving.
need more info just ask.

Posted on Apr 27, 2009

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SOURCE: Where is the oil sending unit located on a 2003 Chevy Tahoe 5.3 engine

its in the block behind intake manifold .

Posted on May 05, 2009

hairy32
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SOURCE: 2005 chevy silverado 5.3 Liter 1500 4x4 , im havn

You probably need a oil pressure sending unit it is located at the back of the engine and is a high failure

Posted on Mar 30, 2010

  • 176 Answers

SOURCE: how to replace oil pressure switch on 1988 Chevy

Hi my name is Tom and I am here to help.

aaah!! the wonderful chevy 350. Probably the best engine ever made. It has had a track record few other engines can match.

Enough of old school. Unless they have moved the sensor in the last 30 years, you should find the sensor below the head 1/2 way to the oil pan.

Remove the electrical connection on the top and using the proper open ended wrench unscrew the sensor. Replace with new sensor and reattached the wire and you are home free.

If I forgot something or I can be of further help feel free to call or email me. Either way, please rank my advice so I can become a better helper in the future.

TomE(414-475-5968)

Posted on Jul 02, 2010

  • 335 Answers

SOURCE: where is the oil pressure switch located on a 2003

Hello and welcome. the oil pressure sensor is mounted on the drivers side of engine, top side, behind the intake manifold. kinda hard to find. you will have to look down between the back side of engine and firewall to see it. it is threaded into the block

Posted on Jul 27, 2010

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1 Answer

Where is the oil preasure sensor located on a 2003 4.8 liter v8 chevy silverado


On the engine block located behind the intake manifold. It's hard to access with the intake installed, however not impossible.

Aug 01, 2016 | 2003 Chevrolet Silverado 1500

1 Answer

My oil pressure gauge always reads as high as it can go when the truck is running. I actually think it is a bad stepper motor. Can anyone confirm my suspicion?


unplug the oil pressure sender and see if the gauge goes to zero. If it does than the old cluster was not working properly and the new one is. If the gauge continues to peg with the sender unplugged than your on the right track with a bad cluster.

Nov 06, 2015 | 2003 Chevrolet Silverado 2500HD

1 Answer

Where is oil sending unit located?


You're vehicle has two sensors for the oil,an oil pressure sensor switch & oil pressure sensor.If oil pressure gets below 6psi,the oil pressure sensor switch will turn a dash light on to let you know the pressure is at a dangerously low amount.So if you've got a dash light on,the pressure sensor switch needs to be replaced.Its located to the right of the oil filter housing,on a 2.0 liter.Its located to the left of the oil filter housing,on the 3.0 liter.
If your oil pressure gauge is reading inaccurately,you need to replace the oil pressure sensor instead.Its located near the ac compressor.

Oct 15, 2015 | 2003 Ford Escape

1 Answer

Oil pressure gauge pegs at 80 PSI as soon as you turn the key on. I have replaced the gauge and confirmed the sending unit is working properly. Any ideas on where to look next?


Sounds like a grounded wire. Most senders change resistance to the ground circuit of the gauge. If it pegs there is no resistance to ground and probably a shorted wire.

Dec 31, 2013 | 2003 Chevrolet Silverado 1500

1 Answer

I have a 2005 Silverado 5.3 L, the oil pressure gauge is pegged. When the engine is not running is goes back to 80.


i want you to do this , UN connect the oil pressure switch and let me know if this way can fix your gauge problem .

Nov 14, 2011 | 2005 Chevrolet Silverado 1500HD

1 Answer

My oil pressure gauge is bouncing all around on my 2003 Chevy Avalanche. It bounces from the low end to the high end and everywhere in between. Any idea what might be causing this?


Sounds like the oil pressure sensor. Thatt is the easiest thing to change. If not its the gauge. Put voltage to the wires from the switch and see if the gauge stops jumping and stays pegged, if it does its the switch Good luck

Jul 21, 2010 | 2003 Chevrolet Avalanche

2 Answers

Changed oil pressure switch,still no oil pressure


The fuel pump on that model runs through the oil pressure switch so that if the truck looses oil pressure,It kills power to the fuel pump to prevent engine damage.you need to find the cause of the low oil pressure reading(possibly a bad oil switch).That would be the cheapest place to start,or have it checked with a mechanical gauge.Good luck,
ChevRev

Mar 30, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

I have a 2005 chevy silverado 1500 2wd 5.3. my


Check the wire behind the guage.If not tight it will make the hand bounce.

Mar 18, 2009 | 2003 Chevrolet Silverado 1500

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